Self-Jumping of a Liquid Crystal Elastomer Balloon under Steady Illumination
Abstract
:1. Introduction
2. Model and Formulation
2.1. Dynamic of the Spherical LCE Balloon
2.2. Dynamic LCE Model
2.3. Solution Method
3. Two Motion Regimes and Mechanism of the Self-Jumping
3.1. Two Motion Regimes
3.2. Mechanisms of the Self-Jumping
4. Influence of System Parameters on the Self-Jumping
4.1. Effect of Initial Position
4.2. Effect of Light Intensity
4.3. Effect of Contraction Coefficient
4.4. Effect of Dark Zone
4.5. Effect of Damping Coefficient
4.6. Effect of Gravitational Acceleration
4.7. Effect of Amount of Substance
4.8. Effect of Ambient Pressure
4.9. Effect of Equivalent Elastic Modulus
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Parameter | Definition | Value | Units |
---|---|---|---|
Contraction coefficient | 0.2~0.5 | / | |
trans-to-cis thermal relaxation time | 1~100 | ms | |
Light intensity | 0~1000 | kW/m2 | |
Light-absorption constant | 0.0003 | m2/(s∙W) | |
Reference radius of LCE balloon | 0~5 | mm | |
Volume of the LCE balloon | 0~2 | mm3 | |
Mass of LCE balloon | 0~2 | mg | |
Elastic modulus of LCE balloon | 1~10 | MPa | |
Amount of substance of the gas | 0~10−7 | mol | |
Ideal gas constant | 8.314 | J/(mol·K) | |
Ambient pressure | 0~0.1 | MPa | |
Damping coefficient | 0~0.001 | kg/s | |
Gravitational acceleration | 10 | m/s2 |
Parameter | |||||||
---|---|---|---|---|---|---|---|
Value | 0~102 | 0~20 | 0~104 | 0~107 | 0~50 | 102~107 | 10−2~102 |
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Ge, D.; Jin, J.; Dai, Y.; Xu, P.; Li, K. Self-Jumping of a Liquid Crystal Elastomer Balloon under Steady Illumination. Polymers 2022, 14, 2770. https://doi.org/10.3390/polym14142770
Ge D, Jin J, Dai Y, Xu P, Li K. Self-Jumping of a Liquid Crystal Elastomer Balloon under Steady Illumination. Polymers. 2022; 14(14):2770. https://doi.org/10.3390/polym14142770
Chicago/Turabian StyleGe, Dali, Jielin Jin, Yuntong Dai, Peibao Xu, and Kai Li. 2022. "Self-Jumping of a Liquid Crystal Elastomer Balloon under Steady Illumination" Polymers 14, no. 14: 2770. https://doi.org/10.3390/polym14142770